View Full Version : Making a spout in my smelting pot.
I use a cast iron dutch oven. My question is if I put a hardened steel spout in the wall or bottom do I have to worry about the different expansion rates of the different metals?
blikseme300
03-18-2013, 02:16 PM
I would not do it. Cast iron is fragile enough without adding stress where the spout goes. The thought of a few pounds of molten alloy suddenly being released is ugly.
shadowcaster
03-18-2013, 04:29 PM
You will be better off not messing with trying to make a cast iron pot into a bottom pour. Use steel plate and well casing or a rim. Do a search for "bottom pour smelter" to get some good ideas.
Shad
PULSARNC
03-31-2013, 10:17 PM
A good welder who is used to working with castiron could do it either by welding or brazing a tube in ,however unless he is your brother-in- law or best buddy it will cost more than it is worth . I have brazed hundreds of cast iron water pump housings that broke from freezing and it was a steep learning curve,but now I can do it with 99.9% sucess
220swiftfn
04-01-2013, 01:34 AM
Something else to consider...... The bail handle tabs can't take the weight of any decent amount of lead, so chances are they'd break about mid-pour (velly velly bad!!!)
Dan
USMC87
04-01-2013, 08:27 AM
I would makle one from steel pipe, The cast iron won't handle the working stress . A lap full of lead is not worth the time messing with the pot.
markshere2
04-01-2013, 08:02 PM
I use a cast iron dutch oven. My question is if I put a hardened steel spout in the wall or bottom do I have to worry about the different expansion rates of the different metals?
yes.
plus all the responses above.
mongo404
04-05-2013, 08:48 AM
It took some patience but i drilled and tapped my cast pot to turn it into a bottom pour
detox
04-05-2013, 03:04 PM
Good for you. How will you control flow?
shadowcaster
04-05-2013, 05:15 PM
detox... Good for you. How will you control flow?
You control the flow like this...
http://castboolits.gunloads.com/showthread.php?146065-New-bottom-pour-smelting-pot!&highlight=bottom+pour+smelting+pot
Shad
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